Motorcycle megaphone exhaust system discharge opening



FIG. 1 is an isometric view of a motorcycle megaphone exhaust system discharge opening showing my new design;

FIG. 2 is a rear elevation view thereof; and,

FIG. 3 is a front elevation view thereof.

The broken lines are for illustration purposes only and form no part of the claimed design. 

I claim the ornamental design for a motorcycle megaphone exhaust system discharge opening, as shown and described. 